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Explain the structural model of the cell membrane and give the roles of the cell membrane.

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Final answer:

The cell membrane's structure, characterized by the fluid mosaic model, enables selective permeability, transport, and cell signaling.


Explanation:

Structure of Cell Membranes

The cell membrane is composed of a phospholipid bilayer with embedded proteins and carbohydrates. This arrangement forms a fluid mosaic model, where the phospholipids provide the basic structure, and proteins and carbohydrates serve various functions.

Functions of Cell Membranes

  • Selective Permeability: The cell membrane controls what enters and exits the cell, allowing some substances to pass while blocking others.
  • Transport: Proteins in the membrane facilitate the movement of molecules across the membrane through processes like diffusion or active transport.
  • Cell Signaling: Receptor proteins on the membrane help the cell communicate with its environment and other cells.

Learn more about Cell Membrane Structure and Function here:

https://brainly.com/question/37136206


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